Russia is bringing back the world's largest surface-combatant ship

Developed in the late 1970s, Russia's Kirov-class battle cruisers
are the largest and heaviest surface-combat ships in the world —
and they're coming back with advanced weaponry, according to
Russia's Tass news agency.

At more than 800 feet long, with a displacement of around 25,000
tons, the Kirov dwarfs any navy ship short of
an amphibious assault ship or aircraft carriers. But only
one, the Pyotr Veliky, is still in service.

Russian media says that another aging Kirov-class hull, the
Admiral Nakhimov, is being fitted with Russia's newest antiship,
antiair, and surface-to-surface missiles.

Russia intends to return the Admiral Nakhimov to its fleet in
2019, at which time the Pyotr Veliky will be docked to undergo
the same upgrades.

These include missiles of the Kalibr variety that recently hit
targets in Syria from the Caspian Sea, Zircon hypersonic
missiles, which are slated to be ready by 2020, and a "navalized"
version of Russia's S-400 missile-defense system, according to
Foxtrot Alpha.